Reverse helix agitator
View Patent ↗This application discloses an improved downhole assembly for separating oil and gas in an oil well. The downhole assembly includes an improved agitation device for causing centrifugal force and shear stress on oil and wellbore liquid with entrained gas such that the gas is released and allowed to flow upwards towards the ground surface. The improved agitation device includes the use of a standard helix and a reverse helix.
1. An agitation device comprising:
a slotted body, the slotted body comprising a hole, an exterior surface, an interior surface, a peak, and a bottom, the slotted body is an element of a downhole assembly, the downhole assembly further comprising a top and an anchoring device, the downhole assembly is contained within a casing, the casing is placed in a wellbore;
a dip tube, the dip tube further comprising an inlet, an upper connection, a pipe connecting the inlet and the upper connection, and an exterior face, the dip tube extending from the top of the downhole assembly to the inlet located near the bottom of the slotted body, wherein the dip tube extends through the slotted body, through the anchoring device;
a first standard helix, the first standard helix attached to the exterior face, wherein the first standard helix is comprised of a first standard plate, wherein the first standard helix is below the hole; and
a first reverse helix, the first reverse helix attached to the exterior face, wherein the first reverse helix is comprised of a first reverse plate, wherein the first reverse helix is below the first standard helix.
2. The agitation device of claim 1 , further comprising a downhole pump attached to the top of the downhole assembly.
3. The agitation device of claim 1 , the first standard helix further comprising a second standard plate.
4. The agitation device of claim 1 , the first reverse helix further comprising a second reverse plate.
5. The agitation device of claim 1 , further comprising helix perforations in the first standard helix.
6. The agitation device of claim 1 , further comprising helix perforations in the first reverse helix.
7. The agitation device of claim 1 , wherein the downhole assembly is just above a kickoff point.
8. The agitation device of claim 1 , wherein the wellbore is a vertical well.
9. The agitation device of claim 1 , wherein the wellbore is a horizontal well.
10. The agitation device of claim 1 , wherein the anchoring device is a standard tubing anchor.
11. The agitation device of claim 1 , further comprising of a second standard helix.
12. The agitation device of claim 1 , further comprising of a second reverse helix.
13. The agitation device of claim 1 , wherein the anchoring device is a flow through assembly, the flow through assembly comprising:
an upper perforated tube, the upper perforated tube further comprising upper perforations and an upper flow channel, wherein the upper perforated tube is attached to the anchoring device; and
the anchoring device further comprising a center flow channel, wherein the upper flow channel and the center flow channel are fluidly connected.
14. The agitation device of claim 13 , further comprising a lower perforated tube, the lower perforated tube further comprising lower perforations and a lower flow channel, wherein the lower perforated tube is attached to the anchoring device, wherein the lower flow channel is fluidly connected to the center flow channel.
15. An agitation device comprising:
a slotted body, the slotted body comprising a hole, an exterior surface, an interior surface, a peak, and a bottom, the slotted body is an element of a downhole assembly, the downhole assembly further comprising a top and an anchoring device, the downhole assembly is contained within a casing, the casing is placed in a wellbore, wherein a downhole pump seating nipple is attached to the top of the downhole assembly;
a dip tube, the dip tube further comprising an inlet, an upper connection, a pipe connecting the inlet and the upper connection, and an exterior face, the dip tube extending from the top of the downhole assembly to the inlet located near the bottom of the slotted body, wherein the dip tube extends through the slotted body, through the anchoring device;
a first standard helix, the first standard helix attached to the exterior face, wherein the first standard helix is comprised of a first standard plate, wherein the first standard helix is below the hole, the first standard helix further comprising perforations in the first standard plate; and
a first reverse helix, the first reverse helix attached to the exterior face, wherein the first reverse helix is comprised of a first reverse plate, wherein the first reverse helix is below the first standard helix; the first reverse helix further comprising perforations in the first reverse plate;
wherein the anchoring device is a flow through assembly, the flow through assembly comprising:
the anchoring device further comprising a center flow channel and a structure;
a lower perforated tube, the lower perforated tube further comprising lower perforations and a lower flow channel, the lower perforated tube is attached to the anchoring device; and
an upper perforated tube, the upper perforated tube further comprising upper perforations and an upper flow channel, the upper perforated tube is connected to the anchoring device, the upper flow channel, the center flow channel, and the lower flow channel are fluidly connected, wherein a dip tube extends through the lower perforated tube, through the anchoring device, and through the upper perforated tube.